[LU-13501] Disable health on single-rail deployments

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Epic Link: unlabelled-LU-13422
• Assignee: Chris Horn
• Reporter: Chris Horn

Description

Disable health on single-rail deployments, since the concept of resiliency doesn't exist on single-rail deployments. There is no other interface to fail over to.

local failures:

• 1. Don't call lnet_handle_local_failure() if I only have a single rail.
• 2. Don't queue for resend if I only have a single rail.
  remote failures:
• 1. Don't call lnet_handle_remote_failure() if the destination only has a single rail.
• 2. Don't queue for resend if the destination only has a single rail.

Comments

[Peter Jones]

Landed for 2.14

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38633/
Subject: LU-13501 tests: Add tests for LNet health and resends
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: c70244c131c7c917fdc744fc3a3cbd090e688b1a

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38448/
Subject: LU-13501 lnet: Skip health and resends for single rail configs
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: c5381d73b1d83deed561456bc476d63696b9af16

[Gerrit Updater]

Chris Horn ([e-mail]) uploaded a new patch: https://review.whamcloud.com/38633
Subject: LU-13501 tests: Add tests for LNet health and resends
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 1742f1d7b63cf6f5400cd03e42a8ee7d23f8c28c

[Gerrit Updater]

Chris Horn ([e-mail]) uploaded a new patch: https://review.whamcloud.com/38448
Subject: LU-13501 lnet: Skip health and resends for single rail configs
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: ed76b93ebc220b8aeefcad46d39a55b989d9bef9